Zentel Primary Agent Non isolated AC to DC constant current drive IC ZA8606

ZA8606 is an active PFC non-isolated step-down LED driver controller launched by Zentel Electronics, a subsidiary of Powerchip Group. It operates at a fixed 45KHz switching frequency with an internal high-precision 200mV current reference. Average current feedback loop achieves ±1% constant current accuracy. Minimal peripheral components greatly reduce BOM cost of LED power supplies. Supports full universal AC input (90~264Vac), integrates multi-circuit hardware protection, and features a DIM pin for 0~3V linear dimming. Easily passes CE, FCC, TUV, CCC safety certifications, widely adopted in T8 fluorescent tubes, E26/E27 LED bulbs, 40W LED panel lights and other indoor lighting devices.

ZA8606 Ordering & Packaging Specifications

Key Product Advantages

• ● Universal 90~264Vac AC input, constant current variation ≤3% across full voltage range, compatible with 12~24 series LED PCBs

• ● Active APFC architecture, high power factor & flicker-free output, meets indoor lighting certification standards

• ● Fixed 45KHz switching frequency with built-in frequency dithering & soft drive, low EMI and easy EMC compliance

• ● 200mV high-precision current sense reference, single sense resistor to set output current, typical CC accuracy ±1%

• ● Multi-functional DIM pin: Below 0.25V = system shutdown protection; 0.3~3V = linear dimming; Above 3V = normal constant current mode

• ● Full self-recovery protection suite: UVLO under-voltage lockout, OCP over-current, OVP VCC over-voltage, SCP LED short-circuit, OTP thermal shutdown

• ● Flexible VCC power supply options: Zener diode power supply or auxiliary winding power supply for multiple topologies

• ● Drives external MOSFET up to 10A, maximum system power reaches 40W, fit for bulbs, tubes and panel lamps

• ● Minimal peripheral components; BOM cost under 5USD without extra EMC parts, compatible with low-cost wire-wound inductors

• ● Excellent batch consistency, tiny current drift under high/low temperature, suitable long-hour continuous lighting equipment

Key Electrical Specifications

ZA8606 SOT23-6 Pinout Definition

ZA8606 Internal Functional Block Diagram

Typical Application Circuit Solutions

1. Standard T8 LED Tube Reference Schematic

2. EMC Certified T8 Tube Power Board (CE/FCC/TUV/CCC)

3. 48V 16-series 250mA LED Bulb Standard Demo

Circuit Explanation: Non-isolated step-down APFC topology with minimal external passive components. Standard wire-wound inductors work without high-cost E-cores. Add EMI filter components to pass global safety certifications. DIM pin can connect potentiometer for analog linear dimming or thermal/voltage protection devices for interlock shutdown.

Applicable Product Fields

• ● T8 / T10 LED Fluorescent Tubes (Office & Commercial Indoor Lighting)

• ● E26 / E27 LED A-line Bulbs, Candle Lamps

• ● ≤40W LED Panel Lights & Surface Mount Ceiling Lights

• ● Advertising Light Boxes, Indoor Linear Wall Wash Power Supplies

• ● Cost-effective Universal AC Input Indoor LED Drivers

• ● Commercial Lighting Requiring Linear Dimming & High PF Flicker-Free Output

Zentel LED Driver IC Product Selection Chart

Pin-to-Pin Cross-Compatible Alternative ICs

ZA8606 can directly replace GL8211, NEW1, BP2329, BP2309 without PCB redesign. Advantages over competing ICs: complete built-in hardware protection, native linear analog dimming, superior full-voltage current stability, easier EMI/EMC certification for mass lighting export products.

• ● Advantage 1: Integrated UVLO / OVP / OTP full protection; most rival chips lack auto thermal current foldback & shutdown

• ● Advantage 2: Multi-function DIM pin supports 0.3~3V linear analog dimming; competitors only support on/off PWM dimming

• ● Advantage 3: Built-in frequency dithering reduces EMI noise, cuts extra filter component BOM cost

• ● Advantage 4: 200mV precision current reference, consistent brightness across global universal voltage grids

Brand & Manufacturer Introduction

ZA8606 original manufacturer is Zentel Electronics, a wholly-owned subsidiary of Powerchip Group (world-class 12-inch wafer fab). Founded in 2013, Zentel focuses on R&D of LED lighting power management ICs with senior Japanese & local mixed-signal engineering teams. Product portfolio includes high voltage linear drivers & APFC switching LED controllers. Global sales & service offices are established. GSMICRO is authorized tier 1 distributor, providing datasheets, free samples and complete lighting power reference design support.